Background reading can help you get a sense of the literature surrounding a particular topic. This can start with preliminary searches using the library discovery tool Omni, Google Scholar, or relevant library databases, to identify book content or articles (review articles can be particularly useful).
Tip for searching the library discovery tool Omni and Google Scholar: only scan through the top results since they are sorted and displayed by relevance. If you are not retrieving relevant results, try using different search terms (e.g. other synonyms/related terms). Utilize the limits available to narrow your search results.